Summary statistics of daily environment and health data from 2014 to 2016 in Hefei, China
| Mean | SD | Minimum | P25 | Median | P75 | P95 | Maximum | |
| Schizophrenia admissions | 10.4 | 5.3 | 1.0 | 7.0 | 10.0 | 13.0 | 19.0 | 31.0 |
| Gender | ||||||||
| Male | 5.3 | 3.0 | 0.0 | 3.0 | 5.0 | 7.0 | 11.0 | 18.0 |
| Female | 5.1 | 2.9 | 0.0 | 3.0 | 5.0 | 7.0 | 11.0 | 20.0 |
| Age | ||||||||
| <14 | 0.2 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 3.0 |
| 14–39 | 7.1 | 3.7 | 0.0 | 4.0 | 7.0 | 9.0 | 14.0 | 23.0 |
| 40–64 | 2.9 | 1.9 | 0.0 | 1.0 | 3.0 | 4.0 | 6.0 | 11.0 |
| >64 | 0.2 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 3.0 |
| Season | ||||||||
| Cool* | 10.9 | 5.5 | 1.0 | 7.0 | 10.0 | 14.0 | 22.0 | 31.0 |
| Warm† | 9.9 | 4.0 | 1.0 | 7.0 | 9.0 | 12.0 | 15.0 | 27.0 |
| Air pollutant concentrations (24-hour average) | ||||||||
| NO2 (μg/m3) | 35.5 | 15.2 | 8.0 | 24.0 | 33.0 | 42.0 | 64.0 | 121.0 |
| PM10 (μg/m3) | 80.7 | 53.8 | 9.0 | 43.0 | 67.0 | 104.0 | 180.0 | 408.0 |
| CO (mg/m3) | 1.0 | 0.4 | 0.4 | 0.8 | 0.9 | 1.2 | 1.7 | 2.7 |
| Weather factor | ||||||||
| MT (°C) | 16.8 | 8.9 | −5.9 | 8.8 | 18.0 | 24.4 | 29.70 | 33.7 |
| RH (%) | 75.8 | 13.2 | 33.0 | 68.0 | 76.0 | 85.0 | 96.0 | 100.0 |
↵*Cool season: from November to April.
↵†Warm season: from May to October.
CO, carbon monoxide; MT, mean temperature; NO2, nitrogen dioxide; P25, 25th percentile; P75, 75th percentile; P95, 95th percentile; PM10, particulate matter with an aerodynamic diameter less than or equal to 10 µm; RH, relative humidity.